.... and reactions is what is responsible for the production of ARD. These reactions make low pH water that has the ability to mobilize heavy metals contained in geological materials with which it comes in contact. "ARD causes a devastating impact on the quality of the ground or surface water it discharges to. (Ellison & Hutchison)" ACID MINE DRAINAGE Within the mining process there are several sources that cause ARD. No matter what activities occur, ARD usually occurs when certain conditions are met. These conditions are the factors that limit or accelerate the release of ARD. The initial release of ARD can occur anywhere from a few m .....

.... kill larger animals but they do not eat them. As the need for food for the larvae increases, food gathering raids become more intense. The hunting raids made by ants are carried out by "armies" of thousands of ants and set out from the bivouac in various directions. They form two or three parties going out simultaneously in different directions for 100 yards or more. In the U.S. army we attack countries in different areas to weaken the force we are attacking. We send out thousands of troops in various directions and try to surround the source of the location being attacked. For instance, if there are several locations that needed to be at .....

.... and it is still one of the most powerful available. This laser used a ruby rod for its active medium, which is its way of producing light. Ali Javan then created the first gas laser later in 1960. Three separate teams of American scientists operated the first semiconductor laser in 1962. Then in 1966, the American physicist Peter Sorokin built the first dye laser. To begin with, I will explain the definition of a laser: It is a device that produces a very narrow powerful beam of light. A laser light is a narrow beam of light, in which all the waves are traveling exactly at the same length and moving together as one. A laser light is made up of .....

.... the submarine the Vepr when he attacked the sentry and killed him with a chisel. Panicking he grabbed the guard’s AK-47 and killed seven more crew members on the way to the torpedo bay where he locked himself in. This suicidal teenager the stayed in the bay for twenty hours threatening to blow it up and potentially causing a “Floating Chernobyl”(Paddock-thestar.com). He talked to his mother and then he just killed himself. When scientists and nuclear activists got a hold of this story “it sent shivers through their spine” (Paddock-thestar.com). This was because one day they know that one suicidal teena .....

.... to think about what the atomic bomb could do to the United States and it's people. When ever plutonium was mentioned the first thing that came to people's minds were the bombings of Hiroshima or Nagasaki. No one ever considered the fact that plutonium could be used for more constructive purposes such as: sources of energy or to keep a person's heart beating. We did begin to produce more plutonium but the majority of the substance was used towards our nuclear weapons programs. Along with reactors, sometimes comes a meltdown which can cause harmful effects if it isn't controlled quickly enough. After such instances as the Hanford, Washington reac .....

.... infection and AIDS represent among the most pressing public-policy and public-health problems worldwide. COSTS I think that the AIDS epidemic is having a profound impact on many aspects of medicine and health care. The U.S. Public Health Service estimates that in 1993, the lifetime cost of treating a person with AIDS from infection to death is approximately $119,000. Outpatient care, including medication, visits to doctors, home health aids, and long-term care, accounted for approximately 32 percent of the total cost. Persons exposed to may have difficulty in obtaining adequate health-insurance coverage. Yearly AZT expenses can average approximatel .....

.... galaxy that fell into the core of NGC 4261. The black hole will swallow up the gas from the smaller galaxy over the next 100 million years. Researchers believe that while the gas is being swallowed by the black hole, the process will produce some amazing fireworks. The second puzzling question that astronomers are trying to answer is why isn't the black hole at the center of the galaxy? According to images from the Hubble Space Telescope, the black hole is 20 light-years from the center of the galaxy, but since the black hole is so massive it is hard to explain how it could have been moved. One idea is that the black hole is moving itself. So .....

.... was also able to confirm that alpha particles cause a faint but discrete flash when striking luminescent zinc sulfide screen. These great accomplishments are all overshadowed by Rutherford's famous Gold Foil experiment which revolutionized the atomic model. This experiment was Rutherford's most notable achievement. It not only disproved Thomson's atomic model but also paved the way for such discoveries as the atomic bomb and nuclear power. The atomic model he concluded after the findings of his Gold Foil experiment have yet to be disproven. The following paragraphs will explain the significance of the Gold Foil Experiment as well as how t .....

.... ingredient in gasoline formulas with the goal of increasing combustion efficiency. A fuel oxygenate, MTBE enhances the octane in gasoline and decreases carbon monoxide emission by increasing burning efficiencies. In its haste to declare MTBE as a required ingredient in gasoline, the EPA failed to consider a basic chemical property of MTBE and its long-term effects upon the environment. Because MTBE is highly water-soluble, it dissolves in water, leading to higher concentrations of MTBE in many lakes in the California Sierra Nevada mountains and in many groundwater supplies. Hence, by addressing only one component of a system separately, the EPA .....

.... more than doubled at a count of 90 and bands were at 5 (normally 0). The child was on a current medication of a decongestant and Amoxcillin. Amoxcillin has no effect on inhibitting the viral growth of Pneumonia influenza, Rhinovirus, Parainfluenza, Corona and respitory synctial viruses. This also eliminated the disease obviously effecting the respitory tract and the child's neurology (lethargy and malaise) form being bacterial or fungal, which is common amongst young children. A number of viruses cause respitory illness similar to the common cold, but are much more severe in intensity and wit frequently serious, and even fatal, complications .....